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Larger Replacement Tires? #147475 03/30/20 10:06 PM
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JDon2whls Offline OP
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Anyone know what larger tires will fit, without problems, a 2013 to 2020 XT250? I am exploring my next set well in advance of a necessity.

Re: Larger Replacement Tires? [Re: JDon2whls] #147476 03/30/20 10:23 PM
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Specifically the sizes? I don’t want to start any type of war on which tire make/model is the best...

Re: Larger Replacement Tires? [Re: JDon2whls] #147484 03/31/20 02:37 PM
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Why do you think you need larger tires? Larger tires can be significantly heavier, which is bad for both suspension movement (unsprung weight) and acceleration. Larger tires also tend to float on the surface of anything loose and not dig in and get traction. Good for sand, bad for most everything else.

You need to look at the actual sizes of the tires, not just what's on the sidewall. Knobbies in particular can vary tremendously in actual size compared to what's on the sidewall. The most common interference issue is with larger rear tires and the front of the swingarm. A longer chain may be necessary to move the wheel aft so it won't rub.


This shall pass, be still and know.
2006 XT225, UNI filter, ProTaper bars, MSR handguards, SS front brake line, Shinko 241's.
Re: Larger Replacement Tires? [Re: JDon2whls] #147568 04/05/20 06:50 PM
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You don't say what tires you're running now?


1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, Tiger 800 XRx.
Re: Larger Replacement Tires? [Re: Paul49] #147854 04/30/20 05:38 AM
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Stock OEM.

Re: Larger Replacement Tires? [Re: JDon2whls] #147875 05/04/20 02:52 AM
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rocmoc Offline
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Went bigger and returned to Stock or close as I could. Bike did not perform as well.

rocmoc n AZ


'06 XT225, '82 PE175, '16 Wildcat X 1000se, '70 CJ5
Re: Larger Replacement Tires? [Re: JDon2whls] #148561 07/29/20 10:49 AM
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I always recommend staying with stock size tires on any bike, dirt or street. I have made other modifications to bikes, but never deviated from the stock tire size.


The above is my opinion. Your mileage may vary.
1994/2001 custom built XT225 with a ton of aftermarket parts.



Re: Larger Replacement Tires? [Re: JerryH] #148565 07/29/20 04:16 PM
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Can anybody tell me what size stock tyres are?

My Brazil model had a 110/80 rear

My Jap model had a 120/90 rear, I've stuck with same.

IIRC I read somewhere it was 120/80 rear? Not so common a size over here.

Last edited by Paul49; 07/29/20 09:02 PM.

1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, Tiger 800 XRx.
Re: Larger Replacement Tires? [Re: JDon2whls] #148571 07/29/20 09:31 PM
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I have a 4.10-18 Cheng Shin on mine. A 120/90-18 is 1" larger in diameter than a 120/80-18, and I would consider that better if there are no clearance issues. 1" isn't much, but I like wide sidewalls. Both are the same width. Gearing would be ever so slightly higher with the 120/90-18, but not enough to make any real difference.

Last edited by JerryH; 07/29/20 09:35 PM.

The above is my opinion. Your mileage may vary.
1994/2001 custom built XT225 with a ton of aftermarket parts.



Re: Larger Replacement Tires? [Re: JDon2whls] #148574 07/30/20 09:00 AM
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Thanks Jerry, After trying different ratios, I've found the 15/47 sprockets with the 120/90 tyre give the best gearing for my riding, quicker on road than the overgeared16/47 &15/45 I've tried previously. This suits for my riding at present which is mostly single track back lanes & easy trails. I don't ride the tricky trails now, since my trail-riding chum popped off, not safe on my own, nobody to pick the bike up off me.

Bit of digging, this must be where I saw the 120/80 rear tyre size. As said a tad rare here, while 120/90 is common place.
https://www.motorcyclespecs.co.za/model/yamaha/yamaha_xt225%2093.htm

The 110/80 which was stock for the Brazil model I had stolen, gave good gearing for our trails, but 1st gear a tad low for the road.


1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, Tiger 800 XRx.

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